Match the compressor model according to the heat dissipation area of the condenser:

1. Calculation method for heat exchange area of air-cooled condenser

Refrigerating capacity + compressor motor power / 200~250 = condenser heat exchange area. For example: (3SS1-1500 compressor) CT=40℃: CE=-25℃. Compressor refrigerating capacity = 12527W + compressor motor power 11250W = 23777 / 230 = air-cooled condenser heat exchange area 103m2

The ratio of the heat exchange area of the water condenser to that of the air condenser is estimated to be 1 to 18 (103 /18)=6m2

The area of the evaporator is determined based on the refrigerating capacity of the compressor (evaporation temperature ℃ × Δt, corrected coefficient of relative humidity, as per the table).

3. Calculation method for refrigerating capacity: = temperature difference × weight/time × specific heat × equipment maintenance mechanism

For example, there is a quick-freezing warehouse

1) Cold storage temperature -35℃

2) Freezing capacity: 1T/H

3) Within 2 hours

4) Quick-frozen substances (fresh fish)

5) Ambient temperature: 27℃

6) Equipment maintenance mechanism insulation board calculation: 62℃×1000/2/H×0.82×1.23=31266 kcal/n. The compressor evaporation temperature can be found as CT=40, and the CE-40℃ refrigerating capacity is 31266 kcal/n